Sentence examples for becoming fixed at from inspiring English sources

Fisher pointed out that, in such a situation, the evolutionary dynamics lead to the sex ratio becoming fixed at equal numbers of males and females.

In general, the frequency of a beneficial trait that is under selection will increase steadily in the population toward some arbitrary value, while that of a neutral trait will drift randomly from generation to generation, eventually becoming fixed at 100% or disappearing altogether (Holland and Holland 1990).

This means that things like rapid changes in the death rate of organ cells, or random fluctuations in how many progenitors are dividing at any moment can be too fast to be corrected properly by the renewal control mechanisms, the organ growth will be too fast or too slow, and the organ size can continue to vary rather than becoming fixed at the right size.

Data on both interspecies divergence and within-species polymorphism permit the detection of selection/BGC, since these forces are less effective at preventing disfavoured variants (AT in this case) entering the population as polymorphic variants than at preventing them becoming fixed (Akashi 1995).

In this instance, rapid divergence resulted an ancestral polymorphism at locus 106256 becoming fixed for presence or absence in L. canadensis and L. pardinus while remaining polymorphic in L. lynx.

High allelic diversity at other sex loci may reduce the production of diploid males sufficiently to offset the advantage of rare sex alleles at a locus with low allelic diversity that is at risk of becoming fixed (Asplen et al. 2009).

Many RNA viruses also have high substitution rates – defined here as the rate at which mutations become established within populations – which reflects the probability of arising mutations becoming fixed within virus populations, and is subject to the effects of processes such as natural selection [ 12, 13], competition with other mutations [ 14], and overall viral population dynamics [ 15, 16].

While de novo mutations first need to appear and survive stochastic loss before becoming fixed, standing genetic variants are available right away and might already be segregating at appreciable frequency.

In a population of N diploid individuals there are 2N genes at each locus, all of them, if they are neutral, with an identical probability, x = 1/ 2N), of becoming fixed.

Selection appears to prevent certain arrangement types from becoming fixed within a population.

Non-shattering infructescences were much slower, becoming fixed about 1000 2000 years later.